Il n'y a en fait une différence à la fois pour le nettoyage et le brassage: gras (hydrophobe) composés se comportent différemment des composés solubles dans l'eau, ce qui provoque une grande différence dans le goût. @abbyhairboat Dans excel, vous avez le temps total. Ce que les parties du temps total diffèrent entre chaque méthode? Pour / Remuer / Infusion / Extraire. Veuillez donner des précisions ! Je n'ai jamais entendu parler de Peet est. De quel pays est-il? Combien de bars de pression doit une machine pour cappuccino? Je vois un site web en disant: 9 bars; mon breville dit qu'il a 15 bars. Sont plus de bars plus ou moins de pression - sens sont 9 bars plus ou moins de pression de plus de 15 ans?

L'amertume vient de la sur-extraction du café. La sur-extraction est principalement causée par:

1) le brassage pendant trop longtemps: au début de l'étape du processus de brassage acide saveurs sont tout d'abord extraites, suivie par la douceur. Et vers la fin de l'infusion, seuls les saveurs amères sont extraits. Le truc, c'est d'arrêter de la bière juste après la douceur est extrait.

De Wikipedia: extraction du Café

Les rendements de moins de 18% "en vertu de l'extrait", et plus précisément "sous-développé" – souhaitable composants n'ont pas été suffisamment extrait – et "déséquilibré", et plus précisément à l'aigre, parce que les acides sont extrait tôt, tout en équilibrant les sucres (douceur) et l'amer les composants sont extraits plus tard.

Des rendements de plus de 22% y sont "au-dessus-extrait", spécialement amer, comme amer composants de continuer à être extraites après les acides et les sucres ont en grande partie achevée de l'extraction.

2) Mouture de la taille à petit: petit grind taille signifie une plus grande surface totale des particules. Par conséquent, les saveurs obtenir des extraits plus rapidement et peut conduire à l'extraction.

L'infusion optimale du temps et de broyer la taille varient en fonction de la méthode (de la presse française, manuel de verser l'espresso, etc..), et vous aurez besoin d'expérimenter pour obtenir juste à droite. Le type de grains de café aussi des questions, mais sans doute à un degré moindre que les deux facteurs.

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